Please help...My friend is on the verge of death and I don't know what to do?

Please Help! I have a friend who became addicted to Heroin/Meth. I haven't seen her in over a year because she stole so much from me and lied abt it. I recently found out that she's homeless and living in a tent. She's in complete denial about her drug use. I can't have her stay w me and my husband because I don't trust her at all. She's constantly making up stories about why she needs money. I know she really wants the money for drugs. I worry that she will die out there. She doesn't know I am aware that she broke into businesses and stole cash and jewelry. She really has a good heart when not on drugs. I love her because she was always like a sister to me. Also, she wants me to take her to get an abortion because she has no car. She's 4 months pregnant! I feel extremely uncomfortable w that but she has no one to take her. Any advice would be extremely appreciated. I can't stop thinking about this situation. She asks me to come visit her and her scary meth addicted way older boyfriend. My intuition tells me no..I don't know if she's so out of her mind on drugs that she'd rob me...It hurts terribly because I know she's such a good person and I love her. She won't go to a shelter because she said they don't allow dogs. I feel so helpless..I don't want her to die..she's addicted to heroin and meth!